From 1fd6eabba97e2acff3a4a991f6bc72d017dd3b6e Mon Sep 17 00:00:00 2001
From: liaohongxing <35255844+liaohongxing@users.noreply.github.com>
Date: Sat, 12 Feb 2022 20:00:00 +0800
Subject: [PATCH] fix cache docs error (#1769)

---
 middleware/cache/README.md     | 4 ++--
 middleware/cache/cache_test.go | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/middleware/cache/README.md b/middleware/cache/README.md
index 235b96c69b..3f3607b54d 100644
--- a/middleware/cache/README.md
+++ b/middleware/cache/README.md
@@ -59,7 +59,7 @@ app.Use(New(Config{
 		return time.Second * time.Duration(newCacheTime)
 	},
 	KeyGenerator: func(c *fiber.Ctx) string {
-		return c.Path()
+		return utils.CopyString(c.Path())
 	}
 }))
 
@@ -99,7 +99,7 @@ type Config struct {
 	// Key allows you to generate custom keys, by default c.Path() is used
 	//
 	// Default: func(c *fiber.Ctx) string {
-	//   return c.Path()
+	//   return utils.CopyString(c.Path())
 	// }
 	KeyGenerator func(*fiber.Ctx) string
 
diff --git a/middleware/cache/cache_test.go b/middleware/cache/cache_test.go
index 9b301ad1bc..654e91fdd6 100644
--- a/middleware/cache/cache_test.go
+++ b/middleware/cache/cache_test.go
@@ -267,7 +267,7 @@ func Test_CustomKey(t *testing.T) {
 	var called bool
 	app.Use(New(Config{KeyGenerator: func(c *fiber.Ctx) string {
 		called = true
-		return c.Path()
+		return utils.CopyString(c.Path())
 	}}))
 
 	app.Get("/", func(c *fiber.Ctx) error {